hybrid_jp.change_points module

Chagne point detection using ruptures library.

hybrid_jp.change_points.binseg(arr: ndarray, nseg=3) → list[int]

Use Binary Segmentation algorithm to detect change points.

Parameters:

• arr (np.ndarray) – 2d array of [x,features]

• nseg (int, optional) – number of change points to return. Defaults to 3.

Returns:

index of change points

Return type:

list[int]

hybrid_jp.change_points.find_shock_index_from_gradnd(gradnd: ndarray) → int

Find the index of the shock from gradient of the number density.

• If gradnd is 2d then find the peak of the mean.

• Assume the shock is located at the peak of grad nd

Parameters:

gradnd (np.ndarray) – gradient of the number density.

Returns:

index of the shock.

Return type:

int